I dig out tiny caves, and store gold and silver in them. I build bridges out of silver, Make crowns out of gold, But everyone is afraid of me Even the young and old. Who am I?

Why this works

This riddle cleverly uses metaphorical language to describe the role of a dentist. The "tiny caves" refer to cavities in teeth, which the dentist "digs out" and treats. The "gold and silver" represent dental fillings, which are often made of these metals to restore teeth. The "bridges" and "crowns" are common dental procedures that help fix damaged teeth, and the fear people have of dentists ties into the anxiety many feel about dental visits, making the riddle both playful and relatable.